<div class="navbar" role="navigation">
    <div class="navbar-header">
      <a class="navbar-brand" href="/admin/welcome">番茄TV后台系统</a>
    </div>
    <div class="pull-right" id="header_userinfo">
        <span></span> 
        <a class="btn btn-primary" href="/admin/welcome"><i class="icon-home"></i> 首页</a> 
        <!-- <a class="btn btn-primary" id="logout_btn"><i class="icon-off"></i> 退出</a> -->
      </div>
</div><!-- /.navbar -->